How to make use of 2 NICs on server instead of 1

[Peter Gutmann]

The other thing that you can do, is to add a second default route out the 
second interface (depending on the OS). Solaris 8 will round robin the 
connections.

As always, you milage may vary.

Peter
----
Peter Gutmann
Peter.Gutmann at db.com





emily zhou <zhoue at algonquincollege.com>
Sent by: nagios-users-admin at lists.sourceforge.net
03/30/2004 02:37 PM

 
        To:     Subhendu Ghosh <sghosh at sghosh.org>
        cc:     nagios-users at lists.sourceforge.net
        Subject:        Re: [Nagios-users] How to make use of 2 NICs on server instead of 1


Hi Sg,
Thank you so much for giving this clue. I'd really like to listen to you 
a little bit more. For sure, if I'll use 2 Nic, they'll be connected to 
different networks, in our case is in different VLAN. The issue is that 
I have to manually setup routing table (static path) instead of simply 
using defaut gateway, which means forcing the Nagios server goes to one 
Nic for checking one group of hosts; goes to another Nic when checking 
another group of hosts. Is that correct?

Emily

Subhendu Ghosh wrote:

> On Tue, 30 Mar 2004, emily zhou wrote:
>
>> Hi,
>> I'm using one Solaris box to monitor 200+ boxes 
>> (Unix/NT/Router/Switch/Printers). On Nagios server, we have 2 NICs, 
>> right now I only use 1 of them. In order to split the traffic, I 
>> intend to use 2 networks, but I just wonder how to conduct bunch of 
>> checks going to 1 Nic and others going to another NIC, does anyone 
>> have any ideas?
>>
>
> Depends on your software, switch and routing.
>
> If each nic connects to a different network, then the routing will use 
> the appropriate nic.
>
> If they connect to the same network, the OS decides which nic to use.
>
> Optionally, you can configure load balancing connection to switch - 
> cisco etherchannel or vlan trunk to carry traffic across both links by 
> creating a virtual link.
>




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